Tue, 11 Apr 2006 22:50:00 GMThttp://blog.csdn.net/ox_thedarkness/http://item.feedsky.com/~csdn.net/ox_thedarkness/~1073791/22525479/1073790/1/item.htmlhttp://blog.csdn.net/ox_thedarkness/comments/659618.aspx0http://blog.csdn.net/ox_thedarkness/comments/commentRss/659618.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=659618初步研究了下一种有趣的技术： 能动态修改的代码。 把机器指令写到数组中，并且动态修改他。据称在某些场合能极大提高速度（譬如，无需传递参数，可以动态修改流程）。 偶今天用VC尝试了一下简单的ram函数，颇为有趣，虽然这个例子并未看到高效在哪里... <img src ="http://blog.csdn.net/ox_thedarkness/aggbug/659618.aspx" width = "1" height = "1" />Wed, 12 Apr 2006 06:50:00 +0800ox_thedarknesshttp://blog.csdn.net/ox_thedarkness/archive/2006/04/11/659618.aspx#Feedbackhttp://blog.csdn.net/ox_thedarkness/archive/2006/04/11/659618.aspxox_thedarknesshttp://blog.csdn.net/ox_thedarkness/archive/2006/04/11/659618.aspxhttp://blog.csdn.net/ox_thedarkness/rss.aspxcsdn.net/ox_thedarkness/~1073791/22525479/1073790http://item.feedsky.com/~csdn.net/ox_thedarkness/~1073791/22525480/1073790/1/item.htmlhttp://blog.csdn.net/ox_thedarkness/comments/654155.aspx0http://blog.csdn.net/ox_thedarkness/comments/commentRss/654155.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=654155我们知道，C++中函数返回大型对象是效率的大敌。函数必须返回一个临时 Matrix，而函数外的 mat_l 却必须逐字拷贝它。 既然它的内容马上就不要了，我们为什么不把他们偷过来呢？ 事实上，标准库已经这么做了，stl 中的 swap 就是为完成这种语义而设计的。 本文将讨论 ROV 优化和 MOVE 语义。<img src ="http://blog.csdn.net/ox_thedarkness/aggbug/654155.aspx" width = "1" height = "1" />Fri, 07 Apr 2006 22:06:00 +0800ox_thedarknesshttp://blog.csdn.net/ox_thedarkness/archive/2006/04/07/654155.aspx#Feedbackhttp://blog.csdn.net/ox_thedarkness/archive/2006/04/07/654155.aspxox_thedarknesshttp://blog.csdn.net/ox_thedarkness/archive/2006/04/07/654155.aspxhttp://blog.csdn.net/ox_thedarkness/rss.aspxcsdn.net/ox_thedarkness/~1073791/22525480/1073790http://item.feedsky.com/~csdn.net/ox_thedarkness/~1073791/22525481/1073790/1/item.htmlhttp://blog.csdn.net/ox_thedarkness/comments/613122.aspx0http://blog.csdn.net/ox_thedarkness/comments/commentRss/613122.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=613122i = ++i; 结果为什么是不确定的？C/C++到底是以什么顺序对表达式求值的？为什么要这么做？本文将解释这些问题。<img src ="http://blog.csdn.net/ox_thedarkness/aggbug/613122.aspx" width = "1" height = "1" />Wed, 01 Mar 2006 23:42:00 +0800ox_thedarknesshttp://blog.csdn.net/ox_thedarkness/archive/2006/03/01/613122.aspx#Feedbackhttp://blog.csdn.net/ox_thedarkness/archive/2006/03/01/613122.aspxox_thedarknesshttp://blog.csdn.net/ox_thedarkness/archive/2006/03/01/613122.aspxhttp://blog.csdn.net/ox_thedarkness/rss.aspxcsdn.net/ox_thedarkness/~1073791/22525481/1073790http://item.feedsky.com/~csdn.net/ox_thedarkness/~1073791/22525482/1073790/1/item.htmlhttp://blog.csdn.net/ox_thedarkness/comments/611370.aspx0http://blog.csdn.net/ox_thedarkness/comments/commentRss/611370.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=611370下面我们讨论两段 C++ 代码。 一段是关于多继承和向上映射的BUG， 另一段则是RTTI。 他们看似无关， 实则魔镜的正反两面。 <img src ="http://blog.csdn.net/ox_thedarkness/aggbug/611370.aspx" width = "1" height = "1" />Tue, 28 Feb 2006 00:03:00 +0800ox_thedarknesshttp://blog.csdn.net/ox_thedarkness/archive/2006/02/27/611370.aspx#Feedbackhttp://blog.csdn.net/ox_thedarkness/archive/2006/02/27/611370.aspxox_thedarknesshttp://blog.csdn.net/ox_thedarkness/archive/2006/02/27/611370.aspxhttp://blog.csdn.net/ox_thedarkness/rss.aspxcsdn.net/ox_thedarkness/~1073791/22525482/1073790http://item.feedsky.com/~csdn.net/ox_thedarkness/~1073791/22525483/1073790/1/item.htmlhttp://blog.csdn.net/ox_thedarkness/comments/597036.aspx2http://blog.csdn.net/ox_thedarkness/comments/commentRss/597036.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=597036正像以前我说过的，我已经不下五次“以为”我理解数组了，然而今天又一次发现自己无知。 初学的时候我把数组当成已经指向空间的指针看... 当我明白了某些实现机制时，我开始把数组当成一个运算规则特殊的变量； 我察看汇编剖析原理，理解逐步深入。 可是，明白得越多，就会发现越多的特例。 最终 —— 我陷入了看似任意且繁杂的规则的迷宫。<img src ="http://blog.csdn.net/ox_thedarkness/aggbug/597036.aspx" width = "1" height = "1" />Sun, 12 Feb 2006 07:26:00 +0800ox_thedarknesshttp://blog.csdn.net/ox_thedarkness/archive/2006/02/11/597036.aspx#Feedbackhttp://blog.csdn.net/ox_thedarkness/archive/2006/02/11/597036.aspxox_thedarknesshttp://blog.csdn.net/ox_thedarkness/archive/2006/02/11/597036.aspxhttp://blog.csdn.net/ox_thedarkness/rss.aspxcsdn.net/ox_thedarkness/~1073791/22525483/1073790http://item.feedsky.com/~csdn.net/ox_thedarkness/~1073791/22525484/1073790/1/item.htmlhttp://blog.csdn.net/ox_thedarkness/comments/594055.aspx0http://blog.csdn.net/ox_thedarkness/comments/commentRss/594055.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=594055最近对入地颇感兴趣，动辄查汇编，写了不少混合代码研究语法。放下扳手抹抹鼻尖上的机油，倒是有些心得。各位看官——我就要跟大家乱侃近来入地一个多月，邪门歪地道挖出杂七杂八的东西——的工具——就是VC混合汇编。<img src ="http://blog.csdn.net/ox_thedarkness/aggbug/594055.aspx" width = "1" height = "1" />Wed, 08 Feb 2006 09:30:00 +0800ox_thedarknesshttp://blog.csdn.net/ox_thedarkness/archive/2006/02/08/594055.aspx#Feedbackhttp://blog.csdn.net/ox_thedarkness/archive/2006/02/08/594055.aspxox_thedarknesshttp://blog.csdn.net/ox_thedarkness/archive/2006/02/08/594055.aspxhttp://blog.csdn.net/ox_thedarkness/rss.aspxcsdn.net/ox_thedarkness/~1073791/22525484/1073790